Open-source alternatives to LibRecommender

A framework for large scale recommendation algorithms.

Implicit is a Python recommendation engine and matrix factorization library designed for collaborative filtering. It implements predictive models that analyze implicit feedback to estimate user preferences and generate personalized item recommendations without requiring explicit ratings. The library utilizes native-code execution and multi-core parallelized processing to decompose large interaction matrices into latent factors. It incorporates approximate nearest neighbor indexing to accelerate high-dimensional similarity lookups and reduce recommendation latency. The framework covers prefer

This project has been moved to https://github.com/cnclabs/smore.

A TensorFlow recommendation algorithm and framework in Python.

LightFM is a Python recommendation library and machine learning framework designed to predict user preferences. It implements a hybrid recommendation engine that combines collaborative filtering with content filtering by integrating user-item interaction data with descriptive metadata. The system utilizes hybrid matrix factorization to learn latent representations of users and items. It is specifically designed to handle implicit feedback, utilizing specialized loss functions such as Weighted Approximate Rank Pairwise and Bayesian Personalized Ranking to optimize item preferences for datasets

Deep recommender models using PyTorch.

Recommenders is a recommendation system framework designed for building, benchmarking, and deploying collaborative and content-based filtering models. It provides a machine learning model pipeline that standardizes the process of moving recommendation data from raw ingestion through training and evaluation. The project functions as a model benchmarking toolkit, utilizing standardized ranking and error metrics to compare the accuracy of different algorithms. It also serves as a hyperparameter tuning tool, allowing for the optimization of model behavior and performance via external configuratio

Crab is a flexible, fast recommender engine for Python that integrates classic information filtering recommendation algorithms in the world of scientific Python packages (numpy, scipy, matplotlib).

Oryx 2: Lambda architecture on Apache Spark, Apache Kafka for real-time large scale machine learning

A Comparative Framework for Multimodal Recommender Systems

RecBole is a PyTorch-based recommendation framework designed for building, training, and evaluating a wide variety of recommendation algorithms. It serves as a standardized benchmark environment that allows for the comparison of different model architectures using public datasets and consistent evaluation metrics. The project provides specialized toolkits for sequential recommendation and knowledge-graph integration, enabling the prediction of item sequences based on user history or the incorporation of structured external knowledge. It includes a dedicated hyperparameter optimization engine